[PATCH 0/2] extend support for CMA CMA on x86

[Akinobu Mita <akinobu.mita@gmail.com>]

This patch set extends support for the DMA Contiguous Memory Allocator
on x86.  Currently it is only supported on pci-nommu.  So this aims at
enabling it on swiotlb and intel-iommu, too.

Regardless of which dma mapping implementation is actually used in the
system, I would like to allocate big contiguous memory with
dma_alloc_coherent() and tell the base address to the device that
requires it.  This is why I need this change.

Akinobu Mita (2):
  x86: enable DMA CMA with swiotlb
  intel-iommu: integrate DMA CMA

 arch/x86/Kconfig               |  2 +-
 arch/x86/include/asm/swiotlb.h |  7 +++++++
 arch/x86/kernel/amd_gart_64.c  |  2 +-
 arch/x86/kernel/pci-swiotlb.c  |  9 ++++++---
 arch/x86/pci/sta2x11-fixup.c   |  6 ++----
 drivers/iommu/intel-iommu.c    | 32 ++++++++++++++++++++++++--------
 include/linux/swiotlb.h        |  2 ++
 lib/swiotlb.c                  |  2 +-
 8 files changed, 44 insertions(+), 18 deletions(-)

Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: iommu@lists.linux-foundation.org
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1.8.3.2